Feature update for Ambient mode. Go to Ambient mode on No Input

I have a 2018 QN55Q6FNAFXZC, and it has ambient mode, which is nice, but it would be better if it automatically turned to Ambient mode whenever there is "no input". Say if you turn off your cable box, the TV has "no input" message.

It would be great if they added the feature to automatically go to Ambient mode.